Clausing 1766 Variable speed - Spindle disassembly help needed

[Odd-job]

Found the drill press of my dreams a month or so ago.... Clausing 1766 variable speed. Am slowly in the process of getting it into semi good working order with tolerable runout and a motor that doesn't smoke itself. Motor has already been replaced with a 1140 RPM unit after realizing a loose motor rotor was jamming itself onto the centrifugal switch. Trying to address the bearings right now which has been an iterative process.

An currently stuck on the spindle and quill assembly (have the morse taper number 2 on the left in case it matters). It took me a while to notice that Clausing was nice enough to put a hole to loosen the 1/4 set screws on the collar. The hole was caked with grease. Was hoping the collar would be nice enough to fall off and the whole thing would disassemble itself. Instead am realizing the whole thing is pressed together like everything else. Am I correct that pressing spindle down is the way to go? A few taps of the hammer went nowhere and the hydraulic press is looking like the next best option. Am a bit nervous as I hear the spindles and parts in general from Clausing are fall out of your seat expensive.




Someone was nice enough to post the entire manual here for reference:

https://makerspace.tulane.edu/images/2/24/Clausing_15_in_drill_press_model_1672.pdf

 

[shawhite]

yep press the spindle down which will push the bearing up onto the spline where it should slide easy. The spindles are crazy expensive from clausing but in my experience they are pretty strong.

 

[Odd-job]

yep press the spindle down which will pushing the bearing up onto the spline where it should slide easy. The spindles are crazy expensive from clausing but in my experience they are pretty strong.

Many thanks shawhite. Just to confirm the lower bearing, upper bearing, and collar all come up through the top of the quill? The diagram above somewhat misleading as it kind of implies the lower bearing is pressed in through the bottom.

 

[shawhite]

Yes spindle will push down. Lower bearing will remain in the quill or more than likely on the spindle to be removed after the upper bearing and quill. It seems scary the first time but take your time and go slow and you should be fine.

 

[Odd-job]

Thanks got it disassembled today. Just to lay out disassembly for the next guy:

1. Loosen collar nut set screws through hole in the quill
2. Drive spindle down and out of the quill - hydraulic press was ideal here
3. Collar will fall out
4. Knock/pull out upper bearing through the top
5. Knock/pull out lower bearing through the bottom

Looks like the bearings are as follows:

• 1x "6207" 35mm X 62mm X 14mm - be careful ordering there are different sizes of this one - cross referenced with 18-20 in the spindle pulley assembly
• 2x 6205 25mm X 52mm X 15mm - cross referenced with 044-017 in the spindle pulley assembly
• 2x 6203 17mm X 40mm X 12mm - cross referenced with 044-018 above

The 6203's inside the quill were past their prime and probably the cause of the runout

Wish I knew these sizes before and would have ordered them in advance. Maybe I'll finally put it together next week?

 

[Odd-job]

Attaching the manual for posterity sake